diff --git a/core/src/main/java/org/acegisecurity/providers/cas/CasAuthenticationProvider.java b/core/src/main/java/org/acegisecurity/providers/cas/CasAuthenticationProvider.java
index bfb4a2b616..55c1c70e12 100644
--- a/core/src/main/java/org/acegisecurity/providers/cas/CasAuthenticationProvider.java
+++ b/core/src/main/java/org/acegisecurity/providers/cas/CasAuthenticationProvider.java
@@ -120,6 +120,7 @@ public class CasAuthenticationProvider implements AuthenticationProvider, Initia
 
         if (result == null) {
             result = this.authenticateNow(authentication);
+            result.setDetails(authentication.getDetails());
         }
 
         if (stateless) {